Home / 142,185.15-213,113.68-53,382.02

Finding the Fourth Proportional to 142,185.15, 213,113.68 and 53,382.02

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Solution

The fourth proportional to 142,185.15, 213,113.68 and 53,382.02 is: 80,011.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,185.15 : 213,113.68 = 53,382.02 : x
  2. Step 2: Convert to fraction form
    142,185.15/213,113.68 = 53,382.02/x
  3. Step 3: Cross multiply
    142,185.15x = 213,113.68 × 53,382.02
  4. Step 4: Simplify right side
    142,185.15x = 11,376,437,529.01
  5. Step 5: Solve for x
    x = 11,376,437,529.01/142,185.15
  6. Step 6: Final answer
    x = 80,011.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.